When i stop it revs high but when i pop the clutch its regular..And also my carb is stuck in open position.Should i just buy a new carb.

If your carb is getting stuck open, I would say to rebuild it or find a replacement.

I picked up a spare from the UK a few months ago, just in case I ran into a problem. 

You might try calling Hawk Suzuki, as they are familiar with the 4-10's and would probably be your best bet on a rebuild kit or a spare carb.